186 



REFLECTION AND TRANSMISSION OF RADIO WAVES 



10 20 30 40 50 60 70 



Fig. 4-11 Magnitude of Reflection Coefficient for Average Land (e' = 10, a 

 1.6 X 10~^ mho/m as a Function of Depression Angle. 



10 20 30 40 50 60 70 80 90 



0° 



Fig. 4-12 Phase of Reflection Coefficient for Average Land (i' = 10, a 

 10~^ mho/m) as a Function of Depression Angle. 



1.6 X 



